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Graco 119343 Internal Retaining Ring

The Graco 119343 Internal Retaining Ring ensures secure and precise alignment in high-pressure fluid systems, providing durability and leak-free performance.

  • Material: Heat-treated stainless steel for corrosion resistance
  • High-pressure rated: Up to 5,000 psi
  • Precision fit: CNC machined for tight tolerances
  • Prevents axial displacement: Optimized groove profile
  • Maintenance-friendly: Long service life with minimal wear

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Compatible Machines & Overview

Compatible Machines

  • Graco UltraMax Series Airless Sprayers
  • Graco GST 540 Pump Modules
  • Graco XP 70 Airless Spray Systems
  • High-pressure diaphragm pumps from Graco
  • Rotary gear pumps used in automotive and industrial coatings

Product Highlights

The Graco 119343 Internal Retaining Ring is precision-engineered to maintain axial and radial alignment in high-pressure fluid delivery systems. Made from corrosion-resistant stainless steel, it ensures long-lasting durability and optimal seal performance in demanding environments.

  • Precision CNC machined: Tight tolerances for seamless integration
  • High tensile strength: Withstands up to 5,000 psi continuous operation
  • Optimized groove profile: Prevents axial displacement
  • Heat-treated stainless steel: Rockwell C 42–46 hardness, up to 600°F
  • Maintenance-friendly: Supports long service intervals with minimal wear

Technical Specifications

Feature Details
Part ID 119343
Material 17-4 PH Stainless Steel, corrosion-resistant, heat-treated
Dimensions Height: 0.10 in, Length: 0.45 in, Width: 0.45 in
Pressure Rating Up to 5,000 psi continuous operation
Applications Airless sprayers, diaphragm pumps, rotary gear pumps, high-pressure filtration systems

Frequently Asked Questions

The 119343 ring fits Graco UltraMax, GST 540, XP 70, high-pressure diaphragm pumps, and rotary gear pumps used in coatings applications.

Use a dedicated ring pusher tool to apply uniform radial compression. Ensure the ring seats correctly in its groove to prevent axial migration.

Regular inspection for deformation, micro-cracks, and groove cleanliness is recommended. Using advanced seal materials can extend service life.

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